<template>
	<div>
		<div class="search">
			<input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音">
		</div>
		<div class="search-content" ref="search" v-show="keyword">
			<ul>
				<li class="search-item border-bottom" 
					v-for="item of list" 
					:key="item.id"
					@click="handelCityClick(item.name)">{{item.name}}</li>
				<li class="search-item border-bottom" v-show="hasNoData">没有找到匹配数据</li>
			</ul>
		</div>
	</div>
		
</template>

<script>
import BScroll from 'better-scroll'
export default{
	name: 'CitySearch',
	props: {
		cities: Object
	},
	data () {
		return{
			keyword: '',
			list: [],
			timer: null
		}
	},
	computed: {
		hasNoData (){
			return !this.list.length
		}
	},
	watch: {
		keyword (){
			if (this.timer) {
				clearTimeout(this.timer)
			}
			if (!this.keyword) {
				this.list = []
				return
			}
			this.timer = setTimeout(() => {
				const result = []
				for (let i in this.cities) {
					this.cities[i].forEach((value) => {
						if (value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
							result.push(value)
						}
					})
				}
				this.list = result
			},100)
		}
	},
	methods: {
		handelCityClick (city){
			// this.$store.dispatch("changeCity",city)//省去actions
			this.$store.commit("changeCity",city)
			this.$router.push("/")
		}
	},
	mounted (){
		this.scroll = new BScroll(this.$refs.search)
	}
}
</script>

<style lang="stylus" scoped>
	@import "~styles/varibles.styl"
	.search
		height: .72rem
		padding: 0 .1rem
		background: $bgColor
		.search-input
			box-sizing: border-box
			width: 100%
			height: .62rem
			padding: 0 .1rem
			line-height: .62rem
			text-align: center
			border-radius: .06rem
			color: #666
	.search-content
		z-index: 1
		overflow: hidden
		position: absolute
		top: 1.58rem
		left: 0
		right: 0
		bottom: 0
		background: #eee
		.search-item
			line-height: .62rem
			padding-left: .2rem
			color: #666
			background: #fff
</style>